Direct Hair Implantation (DHI) uses the Choi Implanter Pen to place follicles directly into the scalp without pre-made recipient channels. Follicles are implanted soon after extraction, reducing time outside the body — survival often cited at 98%+.
DHI vs FUE: often no recipient shave (ideal for women or professionals); higher density possible (grafts ~0.6–0.8 mm apart vs ~1 mm+ in classic FUE); less channel trauma; precise 40–45° angles matching natural hair.
Choi pen: hollow needle (0.6–1.0 mm) loads a follicle, enters at correct angle/depth (~3–4 mm), then ejects the graft — consistent depth and ability to work between existing hairs.
Ideal for: female thinning without full shave; density between existing hair; temples/crown/hairline touch-ups; patients who cannot shave for work.
Recovery: minimal swelling; tiny scabs; careful styling can cover the area for office return; shock loss is normal; growth thickens month by month to a final result that can be cut and colored normally.
DHI typically costs ~20–30% more than FUE due to specialized pens, higher skill demand, and longer precision time. Package pathway includes warranty framework, JCI safety, VIP transfer, and hotel.
